Gallatin River

Gallatin River, river rising in the Gallatin Range in the northwestern corner of Yellowstone National Park, Wyoming, U.S., and flowing 120 miles (193 km) north to Three Forks, in southwestern Montana. There it joins with its tributary, the East Gallatin (which rises near Mount Blackmore), and the Madison and Jefferson rivers to form the Missouri River. Named for Albert Gallatin, the early 19th-century statesman, it forms a deep canyon about 70 miles (110 km) long between the Madison and Gallatin ranges. The river is used for irrigation.

Click anywhere inside the article to add text or insert superscripts, subscripts, and special characters.
You can also highlight a section and use the tools in this bar to modify existing content:

Add links to related Britannica articles!
You can double-click any word or highlight a word or phrase in the text below and then select an article from the search box.
Or, simply highlight a word or phrase in the article, then enter the article name or term you'd like to link to in the search box below, and select from the list of results.

Note: we do not allow links to external resources in editor.
Please click the Web sites link for this article to add citations for
external Web sites.